公开(公告)号：US10700602B1

公开(公告)日：2020-06-30

申请号：US16654877

申请日：2019-10-16

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Kevin Alonso ,  David W. Henry ,  Michael Hand

IPC: H02M3/04 ,  H03F3/24 ,  H02J7/00 ,  H04L5/16 ,  H04W4/10

Abstract: A battery operated portable communication device is provided with improved transmitter current limit stabilization via a current limit stabilization circuit operatively coupled to the battery and a DC-to-DC converter of the transmitter. The current limit stabilization circuit provides a variable stabilizing reference voltage which is directly proportional to the supply voltage. The current limit stabilization circuit generates a voltage limit output voltage that controls both the power to the transmitter (120) and limits current to the transmitter.